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Chapter 14
FCAN Interface Function
Preliminary User’s Manual U15839EE1V0UM00
(3)
CAN 1 to 4 interrupt pending registers (C1INTP to C4INTP)
The C1INTP to C4INTP registers indicate the corresponding CAN module interrupt pending sig-
nals. The interrupt pending flags can be cleared by writing to the registers according to the special
bit-clear method. (Refer to chapter 14.3.1 “Bit set/clear function” on page 452)
This register can be read and written in 8-bit and16-bit units.
Figure 14-23:
CAN 1 to 4 Interrupt Pending Registers (C1INTP to C4INTP) (1/2)
Notes: 1. The register address is calculated according to the following formula:
effective address = P address offset
2. x = 1 to 2 for the derivative µPD703128 (A).
3. x = 1 to 4 for the derivatives µPD703129 (A) and µPD703129 (A1).
Read
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Address
Offset
Note 1
Initial
value
C1INTP
0
0
0
0
0
0
0
0
0
C1INT6 C1INT5 C1INT4 C1INT3 C1INT2 C1INT1 C1INT0
1022H
0000H
C2INTP
0
0
0
0
0
0
0
0
0
C2INT6 C2INT5 C2INT4 C2INT3 C2INT2 C2INT1 C2INT0
1024H
0000H
C3INTP
0
0
0
0
0
0
0
0
0
C3INT6 C3INT5 C3INT4 C3INT3 C3INT2 C3INT1 C3INT0
1026H
0000H
C4INTP
0
0
0
0
0
0
0
0
0
C3INT6 C3INT5 C3INT4 C3INT3 C3INT2 C3INT1 C3INT0
1028H
0000H
Write
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
C1INTP
0
0
0
0
0
0
0
0
0
CL_
C1INT6
CL_
C1INT5
CL_
C1INT4
CL_
C1INT3
CL_
C1INT2
CL_
C1INT1
CL_
C1INT0
1022H
C2INTP
0
0
0
0
0
0
0
0
0
CL_
C2INT6
CL_
C2INT5
CL_
C2INT4
CL_
C2INT3
CL_
C2INT2
CL_
C2INT1
CL_
C2INT0
1024H
C3INTP
0
0
0
0
0
0
0
0
0
CL_
C3INT6
CL_
C3INT5
CL_
C3INT4
CL_
C3INT3
CL_
C3INT2
CL_
C3INT1
CL_
C3INT0
1026H
C4INTP
0
0
0
0
0
0
0
0
0
CL_
C3INT6
CL_
C3INT5
CL_
C3INT4
CL_
C3INT3
CL_
C3INT2
CL_
C3INT1
CL_
C3INT0
1028H
Read (1/2)
Bit Position
Bit Name
Note 2, 3
Function
6
CxINT6
Indicates a CAN module x error.
0: No Interrupt pending
1: Interrupt pending
5
CxINT5
Indicates a CAN bus error of CAN module x.
0: No Interrupt pending
1: Interrupt pending
4
CxINT4
Indicates a wake-up from sleep mode of CAN module x.
0: No Interrupt pending
1: Interrupt pending
3
CxINT3
Indicates a error passive status on reception of CAN module x.
0: No Interrupt pending
1: Interrupt pending
Summary of Contents for mPD703128
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